Thats why it says:
"in cases where low quality projects would not be getting funding due to such unvoting of the return proposal."
This applies only to the set few agreeing to this.
So if those agreeing to this deem unvoting the return proposal as harming the system they reserve the right not to unvote the return.
to get it to pass is tearing apart the governance to squeeze something in without the proper amount of votes
The proper amount of votes is 1 more vote than the return proposal.